<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>登录页</title>
</head>
<body>
    <form action="/doLogin" method="post">
        用户名：<input type="text" name="username"> <br>
        密码: <input type="password" name="password"> <br>
        <input type="hidden" name="url" th:value="${url}">
        <input type="submit" value="登录">
    </form>
</body>
</html>